Home / 2,515.28-3,470.93-1,571.02

Finding the Fourth Proportional to 2,515.28, 3,470.93 and 1,571.02

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Solution

The fourth proportional to 2,515.28, 3,470.93 and 1,571.02 is: 2,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.28 : 3,470.93 = 1,571.02 : x
  2. Step 2: Convert to fraction form
    2,515.28/3,470.93 = 1,571.02/x
  3. Step 3: Cross multiply
    2,515.28x = 3,470.93 × 1,571.02
  4. Step 4: Simplify right side
    2,515.28x = 5,452,891.77
  5. Step 5: Solve for x
    x = 5,452,891.77/2,515.28
  6. Step 6: Final answer
    x = 2,167.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.